[G_T_J]

Do you have a multimeter? Use the continuity test to check on the negative connectors

Yes I do.
I was going to identify correct wiring polarity by checking continuity between the jack and the other end.
My question is what do you mean with GND can be tied in the headphones. Could the headphones socket (that the 6-pin plug connects) be using a bracket inside to bridge GND pins?

 

[penmarker]

They could. Since the headphone only connects on one cup it requires a pair of wires to connect to the other cup, there's a possibility L and R channels use the same ground wire.
I have never touched the headphones so no idea how they're wired internally. These are some precautions off the top of my head.

 

[G_T_J]

They could. Since the headphone only connects on one cup it requires a pair of wires to connect to the other cup, there's a possibility L and R channels use the same ground wire.
I have never touched the headphones so no idea how they're wired internally. These are some precautions off the top of my head.

Very reasonable assumption.
I hope it won't be the case though otherwise why did they come up with 4 (+2) pins on the connector in the first place?
Plus a guy a few posts above has supposedly made a balanced cable by using all 4 pins. I just couldn't be sure about the polarity and wiring he followed.

 

[zkdaz]

Do you have a multimeter? Use the continuity test to check on the negative connectors

There is a diagram on the Spec Sheet showing the ground is not tied internally. It doesn't give us any clues which pin is which but as suggested a multimeter should confirm. Download on the european site;

https://europe.beyerdynamic.com/catalog/product/view/_ignore_category/1/id/255/s/dt-150/

 

[G_T_J]

There is a diagram on the Spec Sheet showing the ground is not tied internally. It doesn't give us any clues which pin is which but as suggested a multimeter should confirm. Download on the european site;

https://europe.beyerdynamic.com/catalog/product/view/_ignore_category/1/id/255/s/dt-150/

You've been really really helpful. I will try to create a cable and report back hopefully with positive results.
Now I have to source a reasonable quality 4-conductor cable with (preferably) 2.5mm TRRS jack.
I have a Yinyoon iem cable with mmcx connectors but ideally I'd want something that doesn't split in 2 sides.

 

[G_T_J]

Guys, which Dekoni pad model will fit the DT100/150?

 

[Facta]

My new $170 DT-150, without burn-in, connected to ADI-2 Pro FS BE sounded like a $1000 open-back ToTL. Amazing. The extended 5Hz-30,000Hz bass response is a latest feature or DT-150 came with the same frequency range from its inception since decades? DT-100 with mic is, however, 20Hz-30,000Hz. Has beyerdynamic extended the frequency range of all DT non-Tesla series?

 

[Facta]

Any non-Tesla beyerdynamic headphone that is just as pleasing and as wide in frequency-response as DT-150 without the treble-leanings that the old 770/880/990s came with?

 

[kman1211]

My new $170 DT-150, without burn-in, connected to ADI-2 Pro FS BE sounded like a $1000 open-back ToTL. Amazing. The extended 5Hz-30,000Hz bass response is a latest feature or DT-150 came with the same frequency range from its inception since decades? DT-100 with mic is, however, 20Hz-30,000Hz. Has beyerdynamic extended the frequency range of all DT non-Tesla series?

The DT 100 uses a very different driver than the modern DT Beyers.

 

[Facta]

Wonder what mm size the drivers inside DT-150s are. Anyone?

 

[kman1211]

Wonder what mm size the drivers inside DT-150s are. Anyone?

Same as the DT 880, etc. which is 45 mm

 

[Facta]

Wonder what might be the undoing of DT-150's that didn't make them popular enough at such low price in our times. As users, any of you noticed any cons in your DT-150 that are glaring enough to account for their relative silence on popularity charts?

 

[Facta]

I am interested in purchasing DT-100, just as a prop in films for actors who need a headphone with mic for the role. They look so classy and stylish and positively distinct even in modern times. Do they sound just wonderfully as DT-150s? The 'unextended' bass response at 30Hz to 30,000Hz, instead of DT-150's extended response that goes lower till 5Hz, is purely for the sake of speech intelligibility for those who use the mic section? If both versions sound the same, and if the mic section of DT-100 is removable, I can send the DT-150 back and use DT-100 for both listening pleasure as well as film prop. Any thoughts?

 

[kman1211]

Wonder what might be the undoing of DT-150's that didn't make them popular enough at such low price in our times. As users, any of you noticed any cons in your DT-150 that are glaring enough to account for their relative silence on popularity charts?

Probably their looks, most people seem to like them that have heard them. It's one of the best tuned Beyers stock so it is sad it's overlooked.

I haven't heard the DT 100 but from what I gather they sound nowhere as good as the DT 150. The DT 100 uses a driver from the 1960's that is very midrange focused. It's not that it's old, the even older DT 48 and DT 480 drivers are one of the best dynamic drivers I've ever come across, it's just the DT 100 like the DT 48 may not be the most pleasant listen in stock form as it's more of a tool. But I would be curious to hear a DT 100 sometime and how it would sound on a high-end system.

The DT 190 is the DT 150 with a mic but I think it's discontinued.

 

[G_T_J]

I am interested in purchasing DT-100, just as a prop in films for actors who need a headphone with mic for the role. They look so classy and stylish and positively distinct even in modern times. Do they sound just wonderfully as DT-150s? The 'unextended' bass response at 30Hz to 30,000Hz, instead of DT-150's extended response that goes lower till 5Hz, is purely for the sake of speech intelligibility for those who use the mic section? If both versions sound the same, and if the mic section of DT-100 is removable, I can send the DT-150 back and use DT-100 for both listening pleasure as well as film prop. Any thoughts?

I've got a pair of DT100 and use them with the original DT150 pads which enhance their low end. They sound amazing and there are times I even prefer them over the 150!